Yihui Xiong / Mbed 2 deprecated Seeed_nRF51822_Motion

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Dependencies:   mbed

mbed-src/common/gpio.c@0:638edba3adf6, 2016-01-11 (annotated)

Committer:
yihui
Date:
Mon Jan 11 02:32:24 2016 +0000
Revision:
0:638edba3adf6
initial

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 0:638edba3adf6 1 /* mbed Microcontroller Library
yihui 0:638edba3adf6 2 * Copyright (c) 2006-2013 ARM Limited
yihui 0:638edba3adf6 3 *
yihui 0:638edba3adf6 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 0:638edba3adf6 5 * you may not use this file except in compliance with the License.
yihui 0:638edba3adf6 6 * You may obtain a copy of the License at
yihui 0:638edba3adf6 7 *
yihui 0:638edba3adf6 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 0:638edba3adf6 9 *
yihui 0:638edba3adf6 10 * Unless required by applicable law or agreed to in writing, software
yihui 0:638edba3adf6 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 0:638edba3adf6 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 0:638edba3adf6 13 * See the License for the specific language governing permissions and
yihui 0:638edba3adf6 14 * limitations under the License.
yihui 0:638edba3adf6 15 */
yihui 0:638edba3adf6 16 #include "gpio_api.h"
yihui 0:638edba3adf6 17
yihui 0:638edba3adf6 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
yihui 0:638edba3adf6 19 {
yihui 0:638edba3adf6 20 gpio_init(gpio, pin);
yihui 0:638edba3adf6 21 if (pin != NC) {
yihui 0:638edba3adf6 22 gpio_dir(gpio, PIN_INPUT);
yihui 0:638edba3adf6 23 gpio_mode(gpio, mode);
yihui 0:638edba3adf6 24 }
yihui 0:638edba3adf6 25 }
yihui 0:638edba3adf6 26
yihui 0:638edba3adf6 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
yihui 0:638edba3adf6 28 {
yihui 0:638edba3adf6 29 gpio_init(gpio, pin);
yihui 0:638edba3adf6 30 if (pin != NC) {
yihui 0:638edba3adf6 31 gpio_write(gpio, value);
yihui 0:638edba3adf6 32 gpio_dir(gpio, PIN_OUTPUT);
yihui 0:638edba3adf6 33 gpio_mode(gpio, mode);
yihui 0:638edba3adf6 34 }
yihui 0:638edba3adf6 35 }
yihui 0:638edba3adf6 36
yihui 0:638edba3adf6 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
yihui 0:638edba3adf6 38 gpio_init_in_ex(gpio, pin, PullDefault);
yihui 0:638edba3adf6 39 }
yihui 0:638edba3adf6 40
yihui 0:638edba3adf6 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
yihui 0:638edba3adf6 42 _gpio_init_in(gpio, pin, mode);
yihui 0:638edba3adf6 43 }
yihui 0:638edba3adf6 44
yihui 0:638edba3adf6 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
yihui 0:638edba3adf6 46 gpio_init_out_ex(gpio, pin, 0);
yihui 0:638edba3adf6 47 }
yihui 0:638edba3adf6 48
yihui 0:638edba3adf6 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
yihui 0:638edba3adf6 50 _gpio_init_out(gpio, pin, PullNone, value);
yihui 0:638edba3adf6 51 }
yihui 0:638edba3adf6 52
yihui 0:638edba3adf6 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
yihui 0:638edba3adf6 54 if (direction == PIN_INPUT) {
yihui 0:638edba3adf6 55 _gpio_init_in(gpio, pin, mode);
yihui 0:638edba3adf6 56 if (pin != NC)
yihui 0:638edba3adf6 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
yihui 0:638edba3adf6 58 } else {
yihui 0:638edba3adf6 59 _gpio_init_out(gpio, pin, mode, value);
yihui 0:638edba3adf6 60 }
yihui 0:638edba3adf6 61 }